#include<stdio.h>
#include<string.h>
#include<stdlib.h>

int main(int argc,char* argv[])
{
    if(argc!=2)
    {
        printf("can not execute!\n");
        exit(1);
    }

    printf("获取环境变量:My_Path:%s\n",getenv("My_Path"));

    if(strcmp(argv[1],"-a")==0)
    {
        printf("hello a!\n");
    }
    else if(strcmp(argv[1],"-b")==0)
    {
        printf("hello b!\n");
    }
    else{
        printf("default!\n");
    }
    return 0;
}
